Display screen with a graphical user interface



The FIGURE is a front view of a display screen with a graphical user interface, showing the new design.

The broken line showing the wrist watch is provided for the purpose of illustrating environmental structure. All other broken lines illustrate the display screen and elements of the graphical user interface. Any subject matter shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a display screen with a graphical user interface, as shown and described. 